Batteries, 24 V Emergency Power Supply - Bosch FPC-500-2 Installation Manual

Conventional Fire Panel
3.2.5

Batteries, 24 V Emergency Power Supply

You can use two 12 V batteries with maximum 7.2 Ah each in the
housing as emergency power supply.
The batteries are connected in series. If the mains power fails,
they are used to ensure interruption-free power supply of the
fire panel and the components fed by them.
Notice!
The fire panel can also only be started with the batteries if the
power supply is disconnected.
After you have placed the batteries in the housing, secure them
using the plastic foam blocks provided.
Position the plastic foam blocks in between the top of the
batteries and the housing.
There are different emergency current back-up times depending
on the battery capacity used and the current consumption of the
components connected to the panel. You can calculate this
using the battery calculator included on the CD.
After troubleshooting a mains fault and operating the fire panel
via emergency current, the power supply unit switches back to
mains operation automatically. The batteries are charged again
automatically.
Notice!
Note the polarity of the batteries.
If the batteries are connected with the polarity reversed, the
thermal fuse on the main board of the fire panel reacts.
Bosch Sicherheitssysteme GmbH
Installation | en
2014.06 | 7.0 | F.01U.172.980
17